Peb ntu dej nres ntsia hlau
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Lub cev vertebral hom dej nres ntsia hlau tuaj yeem muab faib ua peb ntu: ob tus pas nrig sab nraud thiab ib tus pas nrig sab hauv. Nws muaj cov qauv yooj yim thiab siv tau yooj yim. Thiab cov pas nrig sab nraud tuaj yeem rov ua dua tom qab disassembly. Hauv kev tsim kho tom qab, tsuas yog qhov nruab nrab ntawm cov ntsia hlau yuav tsum tau yuav, uas muaj qhov zoo ntawm kev txo cov khib nyiab thiab txo cov khoom siv; Thiab txhim kho kev ua haujlwm zoo thiab kev tsim vaj tsev zoo. Qhov nruab nrab ntawm tus pas nrig sab hauv yog welded nrog lub nplhaib nres dej, thiab ob qhov kawg yog threaded. Qhov ntev ntawm tus pas nrig sab hauv yog txiav txim siab raws li lub thickness ntawm nyias-walled pob zeb qauv. Nyob rau hauv tus txheej txheem ntawm formwork tshem tawm, ua ntej tshem tawm lub sab nrauv pas nrig, thiab ces tshem tawm cov formwork. Lub formwork muaj xoom poob thiab txuag nyiaj thiab ua haujlwm